Finding the Fourth Proportional to 10,860,341.78, 14,974,989.93 and 6,934,936.49
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Solution
The fourth proportional to 10,860,341.78, 14,974,989.93 and 6,934,936.49 is: 9,562,369.78
Step by Step Solution
- Step 1: Write the proportion equation
10,860,341.78 : 14,974,989.93 = 6,934,936.49 : x - Step 2: Convert to fraction form
10,860,341.78/14,974,989.93 = 6,934,936.49/x - Step 3: Cross multiply
10,860,341.78x = 14,974,989.93 × 6,934,936.49 - Step 4: Simplify right side
10,860,341.78x = 103,850,604,028,064.59 - Step 5: Solve for x
x = 103,850,604,028,064.59/10,860,341.78 - Step 6: Final answer
x = 9,562,369.78
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.